When you break down on the road, federal regulations require the use of warning devices. This kit meets those DOT regulations. It contains three 17" triangles packed in a molded-plastic case, along with setup specifications. Fluorescent orange inner triangles provide daylight visibility. Red outer triangles reflect at night. Triangles snap together; plastic base holds triangles in place even in high winds. Meets FMVSS 125 standards. Imported.